Author Topic: Modern go-to switching devices  (Read 1536 times)

Offline John123

  • High Voltage Engineer
  • ****
  • Posts: 227
  • Karma: +5/-0
  • All the gear, no idea. UK
    • View Profile
Modern go-to switching devices
« on: December 14, 2019, 01:54:55 AM »
What are the modern go-to power MOSFETS/IGBT's these days? You know for the usual SSTC or high voltage driver duty, back in 2010-2012 IRFP460 was usually recommended for mains stuff whilst IRFP260 was generally recommended for lower voltage drivers (even though the 200v drain-source breakdown voltage was a bit wimpy imo). Is 55 milliohm on resistance still considered low for a high voltage switching fet?

Also are IGBTs much better these days? Would be interesting to see what's changed over the last 8 years, the last "exotic" 600v, 33 milliom MOSFET I tried had a nasty drain to gate capacitance.
« Last Edit: December 14, 2019, 02:06:59 AM by John123 »

Offline klugesmith

  • High Voltage Engineer
  • ****
  • Posts: 406
  • Karma: +13/-0
    • View Profile
Re: Modern go-to switching devices
« Reply #1 on: December 14, 2019, 04:54:15 AM »
Veering slightly off topic...
Am reminded of continuous improvement in the thyristors (SCR's) used for High Voltage DC transmission by utility companies.


That snip is from a 4-year-old article on a web page by the ABB company.
https://www.abb-conversations.com/2015/11/thyristors-the-heart-of-hvdc/

It mentions a commercial order for devices rated to conduct 6,250 amperes and block 7,200 volts.  That's for a single die, which is round because it fills the silicon wafer.  You still need to stack dozens in series.  From a business point of view, the equipment is intended to be maintained and operated for decades.


« Last Edit: December 14, 2019, 04:58:05 AM by klugesmith »

Offline T3sl4co1l

  • High Voltage Technician
  • ***
  • Posts: 174
  • Karma: +9/-0
    • View Profile
    • Seven Transistor Labs
Re: Modern go-to switching devices
« Reply #2 on: December 14, 2019, 05:37:17 AM »
For what purpose?

There is an endless supply of types available.  Choose what's suited to the application.

For informal HV circuitry, I would dare be more worried that newer devices are more likely to fail.  Not at all because they've gotten less robust -- quite the opposite; but because they may be harder to use, because performance is so much higher (easily 5x better) than what those ancient types offered.

Typical case, VHF oscillation.  Modern SuperJunction transistors offer significant gain in the 100-400MHz range; not that they can be used this fast for large signals, but they are quite capable of oscillating this fast during transitions.  Which can contribute to spooky behavior (RF transmissions interfering with other circuitry), increased peak voltage or heating, or poorer current sharing.

This is, in part, a consequence of the greatly reduced capacitance, which isn't really all that reduced when comparing at low voltages (Vds < 20V say), but the difference is orders of magnitude at higher voltages.

And the faster switching allows higher dV/dt, dI/dt, and issues with snubbing (or the lack thereof).  MOSFETs still don't take kindly to repetitive avalanche breakdown.  In short, tight layout is much more critical.

For a given V, I rating, the die area is significantly smaller, so the power dissipation and thermal time constant are lower.

And simply using a lower Rds(on) part may invite higher peak currents and subsequent destruction.  Most HV circuits have no protection whatsoever, no way to address this.

There are also more materials on the market.  SiC offers high voltage ratings (at the expense of higher gate drive voltage); GaN offers insane switching speeds in extremely compact devices (making them exponentially more sensitive to layout).  Both perform better than Si on a per-area basis, i.e., the dies are extremely tiny -- making them that much more sensitive to excessive power dissipation.

Tim

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1857
  • Karma: +49/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Modern go-to switching devices
« Reply #3 on: December 16, 2019, 10:28:20 AM »
There are also more materials on the market.  SiC offers high voltage ratings (at the expense of higher gate drive voltage); GaN offers insane switching speeds in extremely compact devices (making them exponentially more sensitive to layout).  Both perform better than Si on a per-area basis, i.e., the dies are extremely tiny -- making them that much more sensitive to excessive power dissipation.

That being said, SiC can perform truly amazing when designed right.

Here Steve Ward is pushing some 10-15 kW of power through 6! *SIX*! TO-247 devices.

https://kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline T3sl4co1l

  • High Voltage Technician
  • ***
  • Posts: 174
  • Karma: +9/-0
    • View Profile
    • Seven Transistor Labs
Re: Modern go-to switching devices
« Reply #4 on: December 18, 2019, 07:29:43 AM »
Oh, no doubt. ;D ;D

Tim

High Voltage Forum

Re: Modern go-to switching devices
« Reply #4 on: December 18, 2019, 07:29:43 AM »

 


* Recent Topics and Posts

post Re: Mains Staccato / SGTC
[Spark Gap Tesla Coils (SGTC)]
304er
Today at 10:25:10 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
Today at 07:54:59 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Rafft
Today at 06:44:04 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 12:31:43 AM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
dbach
December 06, 2021, 11:51:07 PM
post Re: profdc9 ud2.7c tht question
[Dual Resonant Solid State Tesla coils (DRSSTC)]
alan sailer
December 06, 2021, 07:48:31 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
December 06, 2021, 03:32:15 PM
post profdc9 ud2.7c tht question
[Dual Resonant Solid State Tesla coils (DRSSTC)]
costas_p
December 06, 2021, 01:57:36 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
December 06, 2021, 11:07:28 AM
post Re: What driver to use for first DRSSTC build
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
December 06, 2021, 04:17:35 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Maju
December 05, 2021, 11:58:51 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
December 05, 2021, 11:21:11 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Maju
December 05, 2021, 08:53:57 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
December 05, 2021, 08:27:13 PM
post Go Big or Go Home
[Static Electricity]
abstruse1
December 05, 2021, 06:06:28 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
December 05, 2021, 12:35:17 PM
post Re: Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown
[Radio Frequency]
Mads Barnkob
December 05, 2021, 12:02:05 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
dbach
December 05, 2021, 12:20:13 AM
post [Ebay find]: 6x Infineon Fast IGBT Modul FZ400R12KE4 1200V 400A Semitrans
[Sell / Buy / Trade]
Mads Barnkob
December 04, 2021, 11:35:01 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
December 04, 2021, 11:02:35 PM
post Re: Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown
[Radio Frequency]
Da_Stier
December 04, 2021, 01:16:47 PM
post Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Teardown
[Radio Frequency]
Mads Barnkob
December 04, 2021, 09:03:55 AM
post Re: Dissimilar caps for Marx or CW?
[Voltage Multipliers]
Mads Barnkob
December 04, 2021, 08:42:26 AM
post Dissimilar caps for Marx or CW?
[Voltage Multipliers]
abstruse1
December 04, 2021, 05:39:32 AM
post Re: Looking to build by first DRSSTC as a high voltage beginner
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
December 03, 2021, 07:27:09 PM
post Re: help with finding resonant frequency
[Beginners]
HVuser
December 03, 2021, 04:43:39 AM
post Re: Looking to build by first DRSSTC as a high voltage beginner
[Dual Resonant Solid State Tesla coils (DRSSTC)]
futurist
December 03, 2021, 01:37:46 AM
post Re: Practical limitations in size for Marx or CW
[Voltage Multipliers]
abstruse1
December 02, 2021, 11:35:39 PM
post Re: Practical limitations in size for Marx or CW
[Voltage Multipliers]
MRMILSTAR
December 02, 2021, 09:53:13 PM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
December 02, 2021, 05:10:30 AM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
December 02, 2021, 04:58:53 AM
post Re: Syntherrupter - A Feature-rich, Polyphonic Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
December 02, 2021, 12:47:10 AM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
December 01, 2021, 10:30:50 PM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
December 01, 2021, 09:10:11 PM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
December 01, 2021, 06:36:14 AM
post Re: DRSSTC build
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 30, 2021, 08:10:17 PM
post DRSSTC build
[Dual Resonant Solid State Tesla coils (DRSSTC)]
balazs
November 30, 2021, 06:55:58 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 30, 2021, 06:23:03 AM
post Re: Help on my "first" SSTC (LabCoatz SSTC 2.0)- Popping transistors
[Solid State Tesla Coils (SSTC)]
davekni
November 30, 2021, 05:58:42 AM
post Re: gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 30, 2021, 05:35:58 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 30, 2021, 01:50:18 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
futurist
November 30, 2021, 01:19:18 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 30, 2021, 12:07:59 AM
post gate drive transformer method
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
November 29, 2021, 11:45:44 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 29, 2021, 10:52:43 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Intra
November 29, 2021, 03:15:23 PM
post Re: Help on my "first" SSTC (LabCoatz SSTC 2.0)- Popping transistors
[Solid State Tesla Coils (SSTC)]
TiagoBS
November 29, 2021, 03:08:58 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Netzpfuscher
November 29, 2021, 12:15:12 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 29, 2021, 12:26:28 AM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
davekni
November 29, 2021, 12:07:30 AM
post Re: SG3525 push pull snubber calculation
[Transformer (Ferrite Core)]
davekni
November 28, 2021, 11:58:24 PM
post GDT (Gate Drive Transformer) tutorial
[Beginners]
davekni
November 28, 2021, 11:40:56 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
November 28, 2021, 10:21:11 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
johnnyzoo
November 28, 2021, 10:05:40 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 28, 2021, 08:13:08 PM
post Re: Infrastructure and Architecture
[General Chat]
futurist
November 28, 2021, 06:12:44 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
November 28, 2021, 04:48:04 PM
post Re: SG3525 push pull snubber calculation
[Transformer (Ferrite Core)]
PowerTech
November 28, 2021, 03:16:11 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 28, 2021, 09:36:10 AM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
plasma
November 28, 2021, 05:32:16 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 28, 2021, 04:28:33 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 28, 2021, 02:19:00 AM
post Re: Where to buy DIY or home made capacitor book(s)?
[Capacitor Banks]
huntergroundmind
November 28, 2021, 01:58:12 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 28, 2021, 12:53:27 AM
post Re: Driverless SSTC
[Solid State Tesla Coils (SSTC)]
davekni
November 28, 2021, 12:32:09 AM
post Re: Help on my "first" SSTC (LabCoatz SSTC 2.0)- Popping transistors
[Solid State Tesla Coils (SSTC)]
davekni
November 28, 2021, 12:16:04 AM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
November 27, 2021, 11:42:08 PM
post Re: Hi! 811 A tesa coil
[Vacuum Tube Tesla Coils (VTTC)]
304er
November 27, 2021, 11:32:12 PM
post Re: Hi! 811 A tesa coil
[Vacuum Tube Tesla Coils (VTTC)]
jpvvv123
November 27, 2021, 11:09:43 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
paulj
November 27, 2021, 10:06:41 PM
post Re: SG3525 push pull snubber calculation
[Transformer (Ferrite Core)]
PowerTech
November 27, 2021, 09:40:34 PM
post Re: SG3525 push pull snubber calculation
[Transformer (Ferrite Core)]
davekni
November 27, 2021, 08:51:05 PM
post Re: Infrastructure and Architecture
[General Chat]
Da_Stier
November 27, 2021, 08:09:50 PM
post Re: SG3525 push pull snubber calculation
[Transformer (Ferrite Core)]
PowerTech
November 27, 2021, 06:00:42 PM
post Re: Someone built Big TC
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
November 27, 2021, 05:04:46 PM
post Re: Someone built Big TC
[Spark Gap Tesla Coils (SGTC)]
304er
November 27, 2021, 04:45:14 PM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
Mads Barnkob
November 27, 2021, 07:59:37 AM
post Re: Contest of motor slowness, or lowness of voltage?
[Science, Research and News In Other Fields Than Electronics]
Mads Barnkob
November 27, 2021, 07:52:59 AM
post Re: FPS1000HD unboxing and first impression
[High Speed Filming]
Mads Barnkob
November 27, 2021, 07:51:01 AM
post Re: Help on my "first" SSTC (LabCoatz SSTC 2.0)- Popping transistors
[Solid State Tesla Coils (SSTC)]
Mads Barnkob
November 27, 2021, 07:47:23 AM
post Re: Infrastructure and Architecture
[General Chat]
Mads Barnkob
November 27, 2021, 07:37:57 AM
post Re: Someone built Big TC
[Spark Gap Tesla Coils (SGTC)]
Mads Barnkob
November 27, 2021, 07:21:43 AM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
patracy
November 27, 2021, 06:06:59 AM
post Re: Someone built Big TC
[Spark Gap Tesla Coils (SGTC)]
304er
November 27, 2021, 05:27:27 AM
post Re: Kind of old single piece of glass plate capacitor
[Spark Gap Tesla Coils (SGTC)]
304er
November 27, 2021, 03:19:55 AM
post Re: Kind of old single piece of glass plate capacitor
[Spark Gap Tesla Coils (SGTC)]
304er
November 27, 2021, 02:31:46 AM
post Re: Kind of old single piece of glass plate capacitor
[Spark Gap Tesla Coils (SGTC)]
304er
November 27, 2021, 02:22:20 AM
post Driverless SSTC
[Solid State Tesla Coils (SSTC)]
bismallah
November 26, 2021, 11:59:27 PM
post Infrastructure and Architecture
[General Chat]
Da_Stier
November 26, 2021, 11:27:47 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
klugesmith
November 26, 2021, 11:17:55 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
November 26, 2021, 08:24:39 PM
post Re: Some Starting Questions About My New DRSSTC ???
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 26, 2021, 07:48:07 PM
post Help on my "first" SSTC (LabCoatz SSTC 2.0)- Popping transistors
[Solid State Tesla Coils (SSTC)]
TiagoBS
November 26, 2021, 07:44:25 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
davekni
November 26, 2021, 06:58:16 PM
post Re: 60hz synchronous motor on 50hz?
[Spark Gap Tesla Coils (SGTC)]
plasma
November 26, 2021, 05:40:37 PM
post Re: "Exploding" water
[Capacitor Banks]
MRMILSTAR
November 26, 2021, 04:39:07 PM
post Re: Kind of old single piece of glass plate capacitor
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
November 26, 2021, 04:31:20 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Intra
November 26, 2021, 03:52:08 PM
post Re: "Exploding" water
[Capacitor Banks]
johnf
November 26, 2021, 09:17:07 AM
post Re: Kind of old single piece of glass plate capacitor
[Spark Gap Tesla Coils (SGTC)]
paulj
November 26, 2021, 08:45:34 AM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal